And neither will trying to reassure someone who just can't be reassured. They will go on fretting, no matter how you plead.

Chronic insecurity in your relationship is a major problem. Why? Because relationships really, deeply matter. Your health, your wellbeing, your happiness are affected by your relationships more than any other factor. And your most intimate relationships have the biggest effect of all.

It's not just the insecure person who suffers

Feeling insecure in a relationship is horrible for the one who is feeling the insecurity. The burden - of fear and obsessive thoughts, of feeling powerless, of awful awareness that all this insecurity may actually itself be destroying what you treasure most - can feel pretty unbearable.

But it's also tough for the person on the receiving end of all that insecurity. The truth is that being involved with a really insecure person can be hell.

This article highlighted what a common problem insecurity is

I wrote an article a while back on overcoming insecurity in relationships and was inundated with feedback from all over the world. The scores of comments on the article itself were just the tip of the iceberg. My inbox overflowed with hundreds more private emails from people wracked by feelings of relationship insecurity.

That article, which explores the reasons for insecurity and offers practical tips to help overcome it, eventually became the springboard for the development of the new 10 steps to overcoming insecurity in relationships course. My article was mainly addressed to those who are themselves feeling insecure in a relationship; but I also got - and still get - hundreds of emails from people who have extremely insecure partners. A common recurring theme of these accounts is how isolating it can feel to find yourself in a relationship with someone who is deeply insecure. And this is one major reason why extreme insecurity can be so damaging.